<template>
  <div class="goods-info"
       v-if="Object.keys(detailInfo).length !== 0" >

<!--    头部-->
    <div class="info-desc clear-fix">
      <div class="start">
      </div>
      <div class="desc">{{detailInfo.desc}}</div>
      <div class="end"></div>
    </div>

<!--    主要内容-->
    <div class="info-key" >{{detailInfo.detailImage[0].key}}</div>
    <div class="info-list">
      <img v-for="(item, index) in detailInfo.detailImage[0].list"
           :key="index" :src="item" alt="" @load="imgLoad">

    </div>

  </div>
</template>

<script>
export default {
  name: "DetailGoodsInfo",
  props: {
    detailInfo: {
      type: Object
    }
  },
  data(){
    return{
      counter: 0 ,
      imagesLength: 0
    }
  },
  methods:{
    imgLoad(){
      //传出图片加载后自定义方法并防抖，防止多次传递
      // 每次加载图片计数器就加一 this.counter++ 这里的++是把上面的自加简化了
      if (++this.counter === this.imagesLength){
        this.$emit('imgLoad')
      }
    }
  },
  watch:{
    detailInfo(){
      this.imagesLength = this.detailInfo.detailImage[0].list.length
    }
  }
}
</script>

<style scoped>

.goods-info {
  padding: 20px 0;
  border-bottom: 5px solid #f2f5f8;
}

.info-desc {
  padding: 0 15px;
}

.info-desc .start, .info-desc .end {
  width: 90px;
  height: 1px;
  background-color: #a3a3a5;
  position: relative;
}

.info-desc .start {
  float: left;
}

.info-desc .end {
  float: right;
}

.info-desc .start::before, .info-desc .end::after {
  content: '';
  position: absolute;
  width: 5px;
  height: 5px;
  background-color: #333;
  bottom: 0;
}

.info-desc .end::after {
  right: 0;
}

.info-desc .desc {
  padding: 15px 0;
  font-size: 14px;
}

.info-key {
  margin: 10px 0 10px 15px;
  color: #333;
  font-size: 15px;
}

.info-list img {
  width: 100%;
}


</style>
